Auto-detect frequency on first hub startup. If frequency is 50Hz, assume 230V. (This should work for 95% of cases)

currentmonitor/lantern-currentmonitor/pom.xml

@@ -3,7 +3,7 @@
 	<groupId>com.lanternsoftware.currentmonitor</groupId>
 	<artifactId>lantern-currentmonitor</artifactId>
 	<packaging>jar</packaging>
-	<version>1.0.6</version>
+	<version>1.0.7</version>
 	<name>lantern-currentmonitor</name>
 
 	<properties>

currentmonitor/lantern-currentmonitor/src/main/java/com/lanternsoftware/currentmonitor/CalibrationResult.java

@@ -0,0 +1,19 @@
+package com.lanternsoftware.currentmonitor;
+
+public class CalibrationResult {
+	private final double voltageCalibrationFactor;
+	private final int frequency;
+
+	public CalibrationResult(double _voltageCalibrationFactor, int _frequency) {
+		voltageCalibrationFactor = _voltageCalibrationFactor;
+		frequency = _frequency;
+	}
+
+	public double getVoltageCalibrationFactor() {
+		return voltageCalibrationFactor;
+	}
+
+	public int getFrequency() {
+		return frequency;
+	}
+}

currentmonitor/lantern-currentmonitor/src/main/java/com/lanternsoftware/currentmonitor/CalibrationSample.java

@@ -0,0 +1,6 @@
+package com.lanternsoftware.currentmonitor;
+
+public class CalibrationSample {
+	public long time;
+	public double voltage;
+}

currentmonitor/lantern-currentmonitor/src/main/java/com/lanternsoftware/currentmonitor/CurrentMonitor.java

@@ -56,44 +56,71 @@ public class CurrentMonitor {
 		chips.clear();
 		pins.clear();
 		gpio.shutdown();
-		LOG.info("Current Monitor Stopped");
+		LOG.info("Power Monitor Service Stopped");
 	}
 
 	public void setDebug(boolean _debug) {
 		debug = _debug;
 	}
 
-	public double calibrateVoltage(double _curCalibration, float _voltage) {
+	public CalibrationResult calibrateVoltage(double _curCalibration) {
 		GpioPinAnalogInput voltagePin = getPin(0, 0);
 		if (voltagePin == null)
-			return 0.0;
+			return null;
-		List<Double> samples = new ArrayList<>(120000);
+		int maxSamples = 120000;
+		CalibrationSample[] samples = new CalibrationSample[maxSamples];
+		int offset = 0;
+		for (;offset < maxSamples; offset++) {
+			samples[offset] = new CalibrationSample();
+		}
+		offset = 0;
 		long intervalEnd = System.nanoTime() + 2000000000L; //Scan voltage for 2 seconds
-		while (System.nanoTime() < intervalEnd) {
+		while (offset < maxSamples) {
-			samples.add(voltagePin.getValue());
+			samples[offset].time = System.nanoTime();
+			samples[offset].voltage = voltagePin.getValue();
+			offset++;
+			if (samples[offset-1].time > intervalEnd)
+				break;
 		}
-
 		double vOffset = 0.0;
-		for (Double sample : samples) {
+		for (CalibrationSample sample : samples) {
-			vOffset += sample;
+			vOffset += sample.voltage;
 		}
-		vOffset /= samples.size();
+		vOffset /= offset;
+		int cycles = 0;
+		boolean under = true;
+		if (samples[0].voltage > (vOffset * 1.3)) {
+			cycles = 1;
+			under = false;
+		}
+		double voltage;
 		double vRms = 0.0;
-		for (Double sample : samples) {
+		for (int sample = 0; sample < offset; sample++) {
-			sample -= vOffset;
+			voltage = samples[sample].voltage - vOffset;
-			vRms += sample * sample;
+			vRms += voltage * voltage;
+			if (under && (samples[sample].voltage > (vOffset * 1.3))) {
+				cycles += 1;
+				under = false;
 			}
-		vRms /= samples.size();
+			else if (samples[sample].voltage < vOffset * 0.7) {
+				under = true;
+			}
+		}
+		vRms /= offset;
+
 		double oldVrms = _curCalibration * Math.sqrt(vRms);
 		if (oldVrms < 20) {
 			LOG.error("Could not get a valid voltage read, please check that your AC/AC transformer is connected");
-			return 0.0;
+			return null;
 		}
-		double newCal = (_voltage/oldVrms) * _curCalibration;
+		int frequency = Math.round(cycles/((samples[offset-1].time-samples[0].time)/100000000f))*10;
+		LOG.info("Detected Frequency: " + frequency);
+
+		double newCal = ((frequency > 55 ? 120:230)/oldVrms) * _curCalibration;
 		double newVrms = newCal * Math.sqrt(vRms);
 		LOG.info("Old Voltage Calibration: {}  Old vRMS: {}", _curCalibration, oldVrms);
 		LOG.info("New Voltage Calibration: {}  New vRMS: {}", newCal, newVrms);
-		return newCal;
+		return new CalibrationResult(newCal, frequency);
 	}
 
 	public void monitorPower(BreakerHub _hub, List<Breaker> _breakers, int _intervalMs, PowerListener _listener) {
@@ -101,6 +128,9 @@ public class CurrentMonitor {
 			stopMonitoring();
 			listener = _listener;
 			List<Breaker> validBreakers = CollectionUtils.filter(_breakers, _b -> _b.getPort() > 0 && _b.getPort() < 16);
+			if (CollectionUtils.isEmpty(validBreakers))
+				return;
+			LOG.info("Monitoring {} breakers for hub {}", CollectionUtils.size(validBreakers), _hub.getHub());
 			sampler = new Sampler(_hub, validBreakers, _intervalMs, 2);
 			LOG.info("Starting to monitor ports {}", CollectionUtils.transformToCommaSeparated(validBreakers, _b -> String.valueOf(_b.getPort())));
 			executor.submit(sampler);
@@ -188,7 +218,7 @@ public class CurrentMonitor {
 				while (true) {
 					synchronized (this) {
 						if (!running) {
-							LOG.error("Power Monitoring Stopped");
+							LOG.info("Power Monitoring Stopped");
 							break;
 						}
 					}

currentmonitor/lantern-currentmonitor/src/main/java/com/lanternsoftware/currentmonitor/MonitorApp.java

@@ -164,12 +164,9 @@ public class MonitorApp {
 								breakerConfig = newConfig;
 								List<Breaker> breakers = breakerConfig.getBreakersForHub(config.getHub());
 								BreakerHub hub = breakerConfig.getHub(config.getHub());
-								if (hub != null) {
+								if (hub != null)
-									LOG.info("Monitoring {} breakers for hub {}", CollectionUtils.size(breakers), hub.getHub());
-									if (CollectionUtils.size(breakers) > 0)
 									monitor.monitorPower(hub, breakers, 1000, logger);
 							}
-							}
 							break;
 					}
 				}
@@ -270,18 +267,17 @@ public class MonitorApp {
 			LOG.info("Breaker Config loaded");
 			BreakerHub hub = breakerConfig.getHub(config.getHub());
 			if (hub != null) {
-				if (config.isNeedsCalibration() && (config.getAutoCalibrationVoltage() != 0.0)) {
+				if (config.isNeedsCalibration()) {
-					double newCal = monitor.calibrateVoltage(hub.getVoltageCalibrationFactor(), config.getAutoCalibrationVoltage());
+					CalibrationResult cal = monitor.calibrateVoltage(hub.getVoltageCalibrationFactor());
-					if (newCal != 0.0) {
+					if (cal != null) {
-						hub.setVoltageCalibrationFactor(newCal);
+						hub.setVoltageCalibrationFactor(cal.getVoltageCalibrationFactor());
+						hub.setFrequency(cal.getFrequency());
 						config.setNeedsCalibration(false);
 						ResourceLoader.writeFile(WORKING_DIR + "config.json", DaoSerializer.toJson(config));
 						post(DaoSerializer.toZipBson(breakerConfig), "config");
 					}
 				}
 				List<Breaker> breakers = breakerConfig.getBreakersForHub(config.getHub());
-				LOG.info("Monitoring {} breakers for hub {}", CollectionUtils.size(breakers), hub.getHub());
-				if (CollectionUtils.size(breakers) > 0)
 				monitor.monitorPower(hub, breakers, 1000, logger);
 			}
 			monitor.submit(new PowerPoster());

currentmonitor/lantern-dataaccess-currentmonitor/src/main/java/com/lanternsoftware/dataaccess/currentmonitor/MongoCurrentMonitorDao.java

@@ -187,7 +187,7 @@ public class MongoCurrentMonitorDao implements CurrentMonitorDao {
 					for (int offset = 0; offset < bytesInDay; offset += 4) {
 						nanBuffer.putFloat(offset, Float.NaN);
 					}
-					for (int key : breakerKeys.keySet()) {
+					for (int key : breakerKeys.values()) {
 						dayReadings.computeIfAbsent(key, _k->nanArray);
 					}
 					for (Entry<Integer, byte[]> be : dayReadings.entrySet()) {

currentmonitor/lantern-datamodel-currentmonitor/src/main/java/com/lanternsoftware/datamodel/currentmonitor/BreakerConfig.java

@@ -185,6 +185,14 @@ public class BreakerConfig implements IIdentical<BreakerConfig> {
 		return null;
 	}
 
+	public Meter getMeterForHub(int _hub) {
+		Meter m = null;
+		Breaker b = CollectionUtils.filterOne(getAllBreakers(), _b->_b.getHub() == _hub);
+		if (b != null)
+			m = CollectionUtils.filterOne(meters, _m->_m.getIndex() == b.getMeter());
+		return (m != null) ? m : new Meter(getAccountId(), 0, "Main");
+	}
+
 	public BreakerGroup findParentGroup(BreakerGroup _group) {
 		for (BreakerGroup group : CollectionUtils.makeNotNull(breakerGroups)) {
 			BreakerGroup parent = group.findParentGroup(_group);

currentmonitor/lantern-datamodel-currentmonitor/src/main/java/com/lanternsoftware/datamodel/currentmonitor/Meter.java

@@ -11,6 +11,15 @@ public class Meter implements IIdentical<Meter> {
 	private int index;
 	private String name;
 
+	public Meter() {
+	}
+
+	public Meter(int _accountId, int _index, String _name) {
+		accountId = _accountId;
+		index = _index;
+		name = _name;
+	}
+
 	public int getAccountId() {
 		return accountId;
 	}

currentmonitor/lantern-service-currentmonitor/src/main/java/com/lanternsoftware/currentmonitor/servlet/console/ExportServlet.java

@@ -75,15 +75,16 @@ public class ExportServlet extends SecureConsoleServlet {
 							redirect(_rep, _req.getContextPath() + "/export");
 							return;
 						}
-						StringBuilder header = new StringBuilder("Timestamp");
+						StringBuilder header = new StringBuilder("\"Timestamp\"");
 						for (BreakerEnergyArchive ba : CollectionUtils.makeNotNull(fday.getBreakers())) {
 							Breaker b = breakers.get(Breaker.intKey(ba.getPanel(), ba.getSpace()));
-							header.append(",");
+							header.append(",\"");
 							if (b != null) {
 								header.append(b.getKey());
 								header.append("-");
 								header.append(b.getName());
 							}
+							header.append("\"");
 						}
 						header.append("\n");
 						DateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'");

currentmonitor/lantern-service-currentmonitor/src/main/resources/templates/export.ftl

@@ -1,16 +1,3 @@
-<!DOCTYPE html>
-<html lang="en">
-<head>
-    <meta charset="utf-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <#if inprogress><meta http-equiv="refresh" content="1"></#if>
-    <title>Lantern Console</title>
-    <link href="${link_prefix}bootstrap/css/bootstrap.min.css" rel="stylesheet">
-    <link href="${link_prefix}bootstrap/css/style.min.css" rel="stylesheet">
-</head>
-<body>
-<div class="container-fluid login-container">
 <div class="row">
     <div class="col-1 col-lg-3 col-4k-4"></div>
     <div class="col-10 col-lg-6 col-4k-4">
@@ -44,7 +31,6 @@
                 </tbody>
             </table>
         </div>
+    </div>
     <div class="col-1 col-lg-3 col-4k-4"></div>
 </div>
-</body>
-</html>

currentmonitor/lantern-service-currentmonitor/src/main/resources/templates/frame.ftl

@@ -4,9 +4,7 @@
     <meta charset="utf-8">
     <meta http-equiv="X-UA-Compatible" content="IE=edge">
     <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="">
+    <#if inprogress!><meta http-equiv="refresh" content="1"></#if>
-    <meta name="author" content="">
-
     <title>Lantern Power Monitor</title>
     <link rel="icon" type="image/png" href="${link_prefix}img/favicon.png">
     <link href="${link_prefix}bootstrap/css/bootstrap.min.css" rel="stylesheet">
@@ -17,7 +15,7 @@
 <div class="container-fluid">
 <div class="row header-menu py-2">
     <div class="col-2"></div>
-    <div class="col-auto"><img class="img-fluid" alt="Logo" src="${link_prefix}img/logo_40.png"/></div>
+    <div class="col-auto"><img class="img-fluid header-logo" alt="Logo" src="${link_prefix}img/logo_40.png"/></div>
     <div class="col"></div>
     <div class="col-auto mx-2"><a href="${link_prefix}" class="text-decoration-none header-link fmnu1">DATA EXPORT</a></div>
     <div class="col-auto mx-2"><a href="${link_prefix}logout" class="text-decoration-none header-link fmnu1">LOGOUT</a></div>

currentmonitor/lantern-service-currentmonitor/src/main/webapp/bootstrap/css/style.css

@@ -227,3 +227,7 @@
 .error {
     color: darkred;
 }
+
+.header-logo {
+    height: calc(1.5rem + .8vw)
+}

currentmonitor/lantern-service-currentmonitor/src/main/webapp/bootstrap/css/style.min.css

@@ -1 +1 @@
-.scrollarea{overflow-y:auto}.fw-semibold{font-weight:600}.lh-tight{line-height:1.25}.menu_link{text-decoration:none!important}.menu_subitem{color:#404040}.menu_item,.menu_subitem:focus,.menu_subitem:hover{background-color:#1a9acc;color:#f0f0f0}.lpm_menu{z-index:1;background:#fff;min-height:100%;max-height:100%}#toggle_label{margin-top:.5rem;display:block;width:2rem;position:absolute;z-index:10}.blue,.title{color:#1a9acc}.kill{color:red}.max-w-300{max-width:min(100%,300px)}.max-w-400{max-width:min(100%,400px)}.max-w-500{max-width:min(100%,500px)}.max-w-600{max-width:min(100%,600px)}.max-w-700{max-width:min(100%,700px)}.max-w-800{max-width:min(100%,800px)}.max-w-900{max-width:min(100%,900px)}.max-w-1000{max-width:min(100%,1000px)}.max-w-1200{max-width:min(100%,1200px)}.align-col-right{display:flex!important;justify-content:flex-end!important;padding-right:1vw!important}.align-col-left{display:flex!important;justify-content:flex-start!important;padding-left:1vw!important}.title{font-size:2em}.sub-title{font-size:1.1em}@media (max-width:991px){#menu_toggle:checked~#toggle_label{position:fixed!important}.lpm_menu{display:none!important}#menu_toggle:checked~.lpm_menu{display:block!important}#menu_toggle:checked~.lpm_body{display:block!important;width:50%}}@media (min-width:992px){.hsy{margin-top:2.3rem!important}}@media (min-width:3000px){#menu_toggle:checked~.lpm_menu{display:block!important}#menu_toggle:checked~.lpm_body{display:block!important;width:50%}}.fm1{font-size:calc(1rem + 1.25vw)}.fm2{font-size:calc(.7rem + 1vw)}.fm3{font-size:calc(.8rem + .5vw)}.fmnu1{font-size:calc(1rem + .5vw)}.fmnu2{font-size:calc(.8rem + .5vw)}.login-bkgnd,.login-container{z-index:2;position:absolute}.login-bkgnd{z-index:1;width:100%;height:100%;top:0;left:0;background-image:url(../../img/pcb.png);background-size:cover;background-position:center}.login-input{width:100%}::placeholder{color:#a0a0a0;opacity:1}.btn-primary{background-color:#1a9acc;border-color:#1a9acc}.btn-primary:focus,.btn-primary:hover{background-color:#20c0ff;border-color:#20c0ff}.header-menu{background-color:#1a9acc}.header-link{color:#f0f0f0}.header-link:hover{color:#d0d0d0}.gso{border-style:none;width:10rem;height:2.5rem;background-image:url(../../img/gso.png);background-position:center;background-size:cover}.gso,.gso:hover{background-color:#0000}.gso:focus{background-image:url(../../img/gso_pressed.png)}.border-none{border-style:none}.error{color:#8b0000}
+.scrollarea{overflow-y:auto}.fw-semibold{font-weight:600}.lh-tight{line-height:1.25}.menu_link{text-decoration:none!important}.menu_subitem{color:#404040}.menu_item,.menu_subitem:focus,.menu_subitem:hover{background-color:#1a9acc;color:#f0f0f0}.lpm_menu{z-index:1;background:#fff;min-height:100%;max-height:100%}#toggle_label{margin-top:.5rem;display:block;width:2rem;position:absolute;z-index:10}.blue,.title{color:#1a9acc}.kill{color:red}.max-w-300{max-width:min(100%,300px)}.max-w-400{max-width:min(100%,400px)}.max-w-500{max-width:min(100%,500px)}.max-w-600{max-width:min(100%,600px)}.max-w-700{max-width:min(100%,700px)}.max-w-800{max-width:min(100%,800px)}.max-w-900{max-width:min(100%,900px)}.max-w-1000{max-width:min(100%,1000px)}.max-w-1200{max-width:min(100%,1200px)}.align-col-right{display:flex!important;justify-content:flex-end!important;padding-right:1vw!important}.align-col-left{display:flex!important;justify-content:flex-start!important;padding-left:1vw!important}.title{font-size:2em}.sub-title{font-size:1.1em}@media (max-width:991px){#menu_toggle:checked~#toggle_label{position:fixed!important}.lpm_menu{display:none!important}#menu_toggle:checked~.lpm_menu{display:block!important}#menu_toggle:checked~.lpm_body{display:block!important;width:50%}}@media (min-width:992px){.hsy{margin-top:2.3rem!important}}@media (min-width:3000px){#menu_toggle:checked~.lpm_menu{display:block!important}#menu_toggle:checked~.lpm_body{display:block!important;width:50%}}.fm1{font-size:calc(1rem + 1.25vw)}.fm2{font-size:calc(.7rem + 1vw)}.fm3{font-size:calc(.8rem + .5vw)}.fmnu1{font-size:calc(1rem + .5vw)}.fmnu2{font-size:calc(.8rem + .5vw)}.login-bkgnd,.login-container{z-index:2;position:absolute}.login-bkgnd{z-index:1;width:100%;height:100%;top:0;left:0;background-image:url(../../img/pcb.png);background-size:cover;background-position:center}.login-input{width:100%}::placeholder{color:#a0a0a0;opacity:1}.btn-primary{background-color:#1a9acc;border-color:#1a9acc}.btn-primary:focus,.btn-primary:hover{background-color:#20c0ff;border-color:#20c0ff}.header-menu{background-color:#1a9acc}.header-link{color:#f0f0f0}.header-link:hover{color:#d0d0d0}.gso{border-style:none;width:10rem;height:2.5rem;background-image:url(../../img/gso.png);background-position:center;background-size:cover}.gso,.gso:hover{background-color:#0000}.gso:focus{background-image:url(../../img/gso_pressed.png)}.border-none{border-style:none}.error{color:#8b0000}.header-logo{height:calc(1.5rem + .8vw)}